Add a browser-test for the keyboard widget.

content/common/notification_type.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_NOTIFICATION_TYPE_H_
 #define CONTENT_COMMON_NOTIFICATION_TYPE_H_
 #pragma once
 
 // This file describes various types used to describe and filter notifications
 // that pass through the NotificationService.
@@ skipping 1317 matching lines @@
 
 #if defined(OS_CHROMEOS)
     // Sent when WebSocketProxy started accepting connections.
     WEB_SOCKET_PROXY_STARTED,
 #endif
 
     // Sent when a new web store promo has been loaded.
     WEB_STORE_PROMO_LOADED,
 
 #if defined(TOUCH_UI)
+    // Sent when the keyboard visibility has changed. Used for testing purposes
+    // only. Source is the keyboard manager, and Details is a boolean indicating
+    // whether the keyboard is visibile or not.
+    KEYBOARD_VISIBILITY_CHANGED,
+
     // Sent when an API for hiding the keyboard is invoked from JavaScript code.
     HIDE_KEYBOARD_INVOKED,
 
     // Sent when an API for set height of the keyboard is invoked from
     // JavaScript code.
     SET_KEYBOARD_HEIGHT_INVOKED,
 
     // Sent when an editable element is touched, such as text box, password
     // field, and omnibox.
     EDITABLE_ELEMENT_TOUCHED,
@@ skipping 23 matching lines @@
 };
 
 inline bool operator==(NotificationType::Type a, NotificationType b) {
   return a == b.value;
 }
 inline bool operator!=(NotificationType::Type a, NotificationType b) {
   return a != b.value;
 }
 
 #endif  // CONTENT_COMMON_NOTIFICATION_TYPE_H_